慢速英语:日本成功带回小行星样本

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asteroid – n. objects made of rock and metal which orbit the sun, but are smaller than planets

sample – n. a small amount of something that represents what it is like

mission – n. a flight by an aircraft or spacecraft to perform a specific task

evolve – v. to develop from other forms of life over millions of years

meteorite – n. a piece of rock from outer space

impress – v. make someone admire or respect you